Agree that the clutches take a bit of getting use to and most judder a bit when pulling off. I'm 5' 6" and have no probs with the driving position other than to have spaced the footrest otwards about 3".
Sod the hillclimb lets make this Bristol meet a proper one
Last event of the season for me and possibly the last one in my current car as I'm putting it up for sale after.
Most appear to do this when they're cold but are ok once warmed up. If this is the case with yours, try pausing momentarily as you pass through neutral and it should be fine. If it does it when warm, then that could indicate a problem.